3
(5) within the limits specified, there is the possibility
of a shock hazard, and the instrument must be
re-pared and rechecked before it is returned to
the customer. See Fig. 1-2.
Fig. 1-2 Insulation Resistance Test
2) Read and comply with all caution and safety
related notes non or inside the cabinet, or on the
chassis.
3) Design Alteration Warning-Do not alter of add to
the mechanical or electrical design of this
instrument. Design alterations and additions,
including but not limited to, circuit modifications
and the addition of items such as auxiliary audio
output connections, might alter the safety
characteristics of this instrument and create a
hazard to the user. Any design alterations or
additions will make you, the service, responsible
for personal injury or property damage resulting
there from.
4) Observe original lead dress. Take extra care to
assure correct lead dress in the following areas:
(1) near sharp edges, (2) near thermally hot
parts (be sure that leads and components do not
touch thermally hot parts), (3) the AC supply, (4)
high voltage, and (5) antenna wiring. Always
inspect in all areas for pinched, out-of-place, or
frayed wiring, Do not change spacing between a
component and the printed-circuit board. Check
the AC power cord for damage.
5) Components, parts, and/or wiring that appear to
have overheated or that are otherwise damaged
should be replaced with components, parts
and/or wiring that meet original specifications.
Additionally determine the cause of overheating
and/or damage and, if necessary, take corrective
action to remove and potential safety hazard.
6) Product Safety Notice-Some electrical and
mechanical parts have special safety-related
characteristics which are often not evident from
evisual inspection, nor can the protection they
give necessarily be obtained by replacing them
with components rated for higher voltage,
wattage, etc. Parts that have special safety
characteristics are identified by shading, an ( )
or a ( ) on schematics and parts lists. Use of a
substitute replacement that does not have the
same safety characteristics as the recommended
replacement part might created shock, fire
and/or other hazards. Product safety is under
review continuously and new instructions are
issued whenever appropriate.
Antenna
Terminal
Exposed
Metal Part
ohm
ohmmeter
Safety Precautions
Summary of Contents for DHC - 2300K
Page 10: ...10 Component Descriptions 2 1 3 NTSC PAL Digital Video Encoder ADV7170 ...
Page 11: ...11 Comonent Descriptions mA ...
Page 12: ...12 Comonent Descriptions ...
Page 14: ...14 Functional Description Component Descriptions ...
Page 15: ...15 Component Descriptions Pinout Diagram ...
Page 18: ...18 Component Descriptions 2 1 5 DIGITAL TO ANALOG STEREO AUDIO CONVERTER CS4391 ...
Page 19: ...19 Component Descriptions ...
Page 20: ...20 Component Descriptions ...
Page 21: ...21 Component Descriptions ...
Page 22: ...22 Component Descriptions 2 1 6 DIGITAL TO ANALOG STEREO AUDIO CONVERTER CS4340 ...
Page 23: ...23 Component Descriptions ...
Page 24: ...24 Component Descriptions ...
Page 42: ...42 Operating Instructions Remained to be defined ...
Page 50: ...50 Troubleshooting Remained to be defined ...
Page 60: ...60 Electrical Part List Remained to be defined ...
Page 62: ...62 Block Diagram Remained to be defined ...
Page 63: ...63 9 PCB Diagrams 9 1 Main PCB Component Side ...
Page 64: ...64 9 2 Main PCB Solder Side PCB Diagrams ...
Page 65: ...65 9 3 Front PCB Component Side 9 4 Front PCB Solder Side PCB Diagrams ...
Page 66: ...66 9 5 SMPS PCB Top Side PCB Diagrams ...
Page 67: ...67 9 6 SMPS PCB Bottom Side PCB Diagrams ...
Page 68: ...68 10 Wiring Diagram ...
Page 69: ...69 Wiring Diagram Remained to be defined ...
Page 71: ...71 Schematic Diagrams 11 1 2 Main PCB A V Decoder Block Schematic diagram ...
Page 72: ...72 Schematic Diagrams 11 1 3 Main PCB Submicom Block Schematic diagram ...
Page 73: ...73 Schematic Diagrams 11 1 4 Main PCB Video Block Schematic diagram ...
Page 74: ...74 Schematic Diagrams 11 1 5 Main PCB Audio Block Schematic diagram ...
Page 75: ...75 11 1 6 Main PCB Out Stage Block Schematic diagram Schematic Diagrams ...
Page 76: ...76 11 2 Front PCB Schematic Diagram 11 2 1 Front PCB Schematic diagram ...
Page 77: ...77 11 3 SMPS PCB Schematic Diagram ...
Page 78: ...78 Schematic Diagrams Remained to be defined ...
Page 79: ...79 TaeYoung Telstar Co Ltd May 2001 Printed in Korea ...